WO2008046475A2 - Système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement - Google Patents

Système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement Download PDF

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Publication number
WO2008046475A2
WO2008046475A2 PCT/EP2007/007852 EP2007007852W WO2008046475A2 WO 2008046475 A2 WO2008046475 A2 WO 2008046475A2 EP 2007007852 W EP2007007852 W EP 2007007852W WO 2008046475 A2 WO2008046475 A2 WO 2008046475A2
Authority
WO
WIPO (PCT)
Prior art keywords
oil
crankcase
exhaust gas
internal combustion
combustion engine
Prior art date
Application number
PCT/EP2007/007852
Other languages
German (de)
English (en)
Other versions
WO2008046475A3 (fr
Inventor
Martin Korn
Franz Bonauer
Tilo Schramm
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Priority to EP07802231A priority Critical patent/EP2076658A2/fr
Publication of WO2008046475A2 publication Critical patent/WO2008046475A2/fr
Publication of WO2008046475A3 publication Critical patent/WO2008046475A3/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/14—Lubrication of pumps; Safety measures therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/021—Arrangements of lubricant conduits for lubricating auxiliaries, e.g. pumps or turbo chargers

Definitions

  • the invention relates to a lubricating system for an internal combustion engine with exhaust gas turbocharger according to the preamble of claim 1.
  • Exhaust gas turbochargers which are used to increase the performance of internal combustion engines are very warm in operation because of the exhaust gas flowing through them. Their bearings have to be lubricated with a certain oil throughput to support the ATL shaft, which also serves to cool the bearings.
  • ATL shaft which also serves to cool the bearings.
  • the invention has for its object to further develop a lubricating system according to the preamble of claim 1 such that the construction and assembly costs is reduced, whereby the manufacturing cost decreases.
  • the invention which can be used for all types of charged by means of one or more turbocharger supercharged internal combustion engines, in which for sucking the turbocharger or the oil supplied to a suction pump is provided, will be explained below with reference to schematic drawings, for example, and with further details.
  • FIG. 1 is a side view of an equipped with the inventive lubrication system internal combustion engine with cut oil pan,
  • Fig. 2 is an end view of a partially cut-open internal combustion engine with the lubricating system according to the invention
  • FIG. 3 is an enlarged view of a detail of FIG. 2.
  • Fig. 1 shows a side view and Fig. 2 shows an end view, partially in section, of parts of an internal combustion engine.
  • an oil pan 12 On the underside of the crankcase 10 of the internal combustion engine, an oil pan 12 is fixed in a conventional manner.
  • an oil pump 14 is arranged, which is also secured to the underside of the crankcase 10.
  • the oil pump has a drive pin 16, on which a conventional drive, not shown, is mounted, which runs into the oil sump 12 from the crankcase inside the space covered by the oil sump. This drive is rotationally driven, for example, by the crankshaft.
  • the oil pump 14 is formed in two stages and includes a pressure stage 18 and a suction stage 20 per turbocharger.
  • An oil suction inlet 22 is arranged at a height such that it protrudes into the oil reservoir, not shown, in the oil pan 12.
  • the sucked oil is conveyed to a Druckölauslass 24 which is connected to an opening into the underside of the crankcase 10 oil supply hole 26 through which the oil to be lubricated or oil to be cooled points of the engine is supplied.
  • a Druckölauslass 24 which is connected to an opening into the underside of the crankcase 10 oil supply hole 26 through which the oil to be lubricated or oil to be cooled points of the engine is supplied.
  • In the bottom of the spa belgephases 10 open not shown oil drain holes from which the circulating oil back into the oil pan 12.
  • an exhaust-gas turbocharger 28 attached to the crankcase or engine housing, the bearing block 30 of which is visible in FIG.
  • FIG. 2 the internal combustion engine, which has, for example, a V-shaped Zy cylinder arrangement, two exhaust gas turbochargers, which are equal to each other in terms of their supply, so that only the oil supply of FIG. 2 left exhaust gas turbocharger 28 explained below is shown in Fig. 3 in a comparison with FIG. 2 enlarged scale.
  • oil supply passages or bores pass through the crankcase 10 and then directly through a bore formed in a mounting bracket of the turbocharger 28 or via a conduit connecting an oil outlet port of the crankcase to an oil inlet port of the turbocharger housing
  • the oil passes into a collecting tank 32 formed below the bearing in the turbocharger and from there into an oil suction line 34, which forms the collecting tank with an inlet opening 36 formed on the crankcase 10 outside the oil sump 12 connects, which is connected via formed within the crankcase 10 channels 38 with an oil outlet opening 42 which is formed on the underside of the crankcase 10 in the bounded by the oil pan 12 space.
  • the suction port 46 may be a completely separate from the ⁇ lseinaugeinlass 22 inlet, which is acted upon by its own suction motor of the oil pump with negative pressure, or may be similar to the ⁇ lansaugeinlass 22 connected to a suction port of the then single-stage oil pump. In the presence of its own suction pump or stage whose outlet can open into the oil sump.
  • the oil suction line 34 is preferably inserted into the inlet opening 36 of the passage through the crankcase 10 by means of conventional line connection technology (eg: ring neck with hollow screw) and thus seals the neck horizontal part of the channel 38 to the outside.
  • the return lines 44 of the two turbochargers 28 are connected on one side to the crankcase and sealed in the oil outlet opening 42 and on the other side to the suction port 46 of the oil pump or. advantageously connected to the suction port of a separate suction stage of the oil pump. It is understood that in two-stage design of the oil pump, the rotor of the suction stage and the rotor of the pressure stage are driven together by the drive pin 16 ago.
  • the oil pump can also be driven electrically and run after turning off the engine for a short time, which advantageously if only the suction pump contained in the oil pump runs after, so that is reliably ensured that no oil remains in the turbocharger.
  • the oil pump 14 can be mounted with the connections in the crankcase completely before mounting the oil pan 12 on the underside of the crankcase. Furthermore, eliminating any tolerances of the oil pan in the tolerance chain from turbocharger to oil pump (suction stage) and make the system less complicated due to the lower tolerance compensation.
  • the return lines between the oil outlet opening 42 and the position of the suction port 46 of the oil pump 14 can be connected by conventional connections and balanced over conventional connectors 52 or other length compensation elements, which are provided in the return line 44.
  • the invention enables the oil extraction of turbochargers by a suction stage within the internal combustion engine, without any passages through the oil pan and the associated complex lines and the increased assembly costs are required.
  • the implementation of the suction through the crankcase has the advantage that the tolerances of the oil pan omitted and due to the good accessibility largely or completely conventional connection technology and conventional length compensations can be used.
  • Numeral 1 is:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne un système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement. Une pompe à huile (14) présentant un orifice d'entrée est conçue pour aspirer de l'huile se trouvant dans un carter d'huile (12) placé sous un carter de vilebrequin (10) du moteur à combustion interne et pour transférer cette huile à des zones du moteur à combustion interne et à des paliers du turbocompresseur à gaz d'échappement (28) qui doivent être alimentés en huile. De l'huile est fournie au turbocompresseur à gaz d'échappement à partir de la pompe à huile, en passant par des canaux d'alimentation formés dans le carter de vilebrequin, lesquels canaux partent de la face inférieure du carter de vilebrequin adjacente à l'espace intérieur du carter d'huile. De l'huile est aspirée du turbocompresseur à gaz d'échappement par l'intermédiaire d'une conduite de retour (34, 38, 44). La pompe à huile est située à l'intérieur de l'espace délimité par le carter d'huile et la face inférieure du carter de vilebrequin. La conduite de retour (34, 38, 44) est au moins partiellement constituée d'un canal (38) situé dans le carter de vilebrequin (10). L'orifice de sortie (42) dudit canal se trouve dans la zone du carter de vilebrequin qui est recouverte par le carter d'huile (12).
PCT/EP2007/007852 2006-10-13 2007-09-08 Système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement WO2008046475A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07802231A EP2076658A2 (fr) 2006-10-13 2007-09-08 Système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610048504 DE102006048504A1 (de) 2006-10-13 2006-10-13 Schmiersystem für eine Brennkraftmaschine mit Abgasturbolader
DE102006048504.1 2006-10-13

Publications (2)

Publication Number Publication Date
WO2008046475A2 true WO2008046475A2 (fr) 2008-04-24
WO2008046475A3 WO2008046475A3 (fr) 2009-06-18

Family

ID=38984446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/007852 WO2008046475A2 (fr) 2006-10-13 2007-09-08 Système de lubrification pour un moteur à combustion interne comprenant un turbocompresseur à gaz d'échappement

Country Status (3)

Country Link
EP (1) EP2076658A2 (fr)
DE (1) DE102006048504A1 (fr)
WO (1) WO2008046475A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933132A1 (fr) * 2008-06-30 2010-01-01 Renault Sas Echangeur de chaleur pour la fixation de conduits de lubrification
DE102009051848A1 (de) * 2009-10-28 2011-05-05 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine
DE102020100538A1 (de) * 2020-01-13 2021-07-15 Bayerische Motoren Werke Aktiengesellschaft Brennkraftmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06257455A (ja) * 1993-03-05 1994-09-13 Toyota Autom Loom Works Ltd ターボチャージャよりインテークマニホルドへの潤滑油流出防止機構
JPH09151718A (ja) * 1995-11-29 1997-06-10 Iseki & Co Ltd ターボチャージャーの潤滑装置
DE10061816A1 (de) * 2000-12-12 2002-07-18 Mtu Friedrichshafen Gmbh Schmiersystem für eine Brennkraftmaschine mit Turbolader
EP1316685A2 (fr) * 2001-12-01 2003-06-04 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Moteur à combustion interne ayant un dispositif de lubrification d'un turbocempresseur
EP1428999A1 (fr) * 2002-12-12 2004-06-16 Renault s.a.s. Arrangement de turbocompresseurs pour moteurs à combustion
JP2005264918A (ja) * 2004-03-22 2005-09-29 Fuso Engineering Corp ターボ過給機付きエンジンのブローバイガス還流装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749024A (en) * 1980-09-09 1982-03-20 Honda Motor Co Ltd Method of fitting and lubrication device for turbo-supercharger
DE3532695C1 (de) * 1985-09-13 1986-11-27 Audi AG, 8070 Ingolstadt Abgasturbolader fuer eine Fahrzeug-Brennkraftmaschine
DE4431088A1 (de) * 1994-09-01 1996-03-07 Kloeckner Humboldt Deutz Ag Ölabsaugung für Abgasturbolader
DE10036130A1 (de) * 2000-07-25 2002-02-07 Volkswagen Ag Zylinderkurbelgehäuse einer Brennkraftmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06257455A (ja) * 1993-03-05 1994-09-13 Toyota Autom Loom Works Ltd ターボチャージャよりインテークマニホルドへの潤滑油流出防止機構
JPH09151718A (ja) * 1995-11-29 1997-06-10 Iseki & Co Ltd ターボチャージャーの潤滑装置
DE10061816A1 (de) * 2000-12-12 2002-07-18 Mtu Friedrichshafen Gmbh Schmiersystem für eine Brennkraftmaschine mit Turbolader
EP1316685A2 (fr) * 2001-12-01 2003-06-04 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Moteur à combustion interne ayant un dispositif de lubrification d'un turbocempresseur
EP1428999A1 (fr) * 2002-12-12 2004-06-16 Renault s.a.s. Arrangement de turbocompresseurs pour moteurs à combustion
JP2005264918A (ja) * 2004-03-22 2005-09-29 Fuso Engineering Corp ターボ過給機付きエンジンのブローバイガス還流装置

Also Published As

Publication number Publication date
DE102006048504A1 (de) 2008-04-17
WO2008046475A3 (fr) 2009-06-18
EP2076658A2 (fr) 2009-07-08

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